How Good is the CR10 V3



Verdict

In today’s article, we’ll be taking a closer look at the CR10V3.  This is a follow-up article to the previous unboxing one.  Now, full disclaimer before we begin. I purchased this machine with my own money and was not paid to do this video, so everything you see here will be based on my own opinion.

To start things off, this machine is a large printer which prints a dimension of 300x300x400mm and can reach hotbed temperatures of up to 100 °C with a printer nozzle temperature of up to 250 °C. Unlike many 3D printers, this machine uses a direct extruder which pushes the filament directly into the nozzle instead of the traditional Bowden tube. This feature makes is quite suitable for printing flexible filaments, which is what was tested for this machine. Also included with the machine, is a run out filament censor which is located in the top of the machine along the spool holder.

If you are getting this machine yourself, you’ll want to keep the spool holder height in mind, since it does take up more room because of its current location. This is however useful if you’re more limited in your overall space, since you can easily place this on a table which doesn’t have any fixtures above it. I personally did end up liking the fact that the control box was separate, since this allowed me more options in placing the machine. I for instance placed the 3d printer sideways but oriented the box controls towards the front of the table, so I would have easier access. Having the control box separate also makes repairs a good deal easier since you can completely disconnect the machine in order to do the proper maintenance without having to deal with the whole unite.

The hotbed itself has a unique design in that it’s easily removable which makes replacements easier in the future and I do which more companies designed their print beds similarly for this reason. This design also makes is possible to upgrade the print bed in the future with a flex plate, which is great news for those who enjoy tinkering with their machines. The print bed is also pre-insulated to help retain the heating temperatures and is a welcome improvement to what can be typically seen in most printers today. I did see some reports about the V2 model having issues maintaining its heat, however this isn’t something in which I found to be an issue with the model that I currently have.

While having a touchscreen is more visually appealing and less daunting to those who are new to 3D printing, it is still fairly easy to navigate. The machine does come with some basic instructions, which do help significantly in this area. There are some things you may wish to know, since they can often be taken for granted. For instance, if the filament sensor goes off because there’s no more filament available and goes into standby. In this case the nozzle will cool down, which is a good thing for safety reasons, however it will mean that you need to reheat the nozzle prior to changing the filament. This is something you can easily do by going to “Prepare + Preheat PLA + Pre Heat nozzle” This will only pre-heat the nozzle at which point you can remove the filament in question. Be very careful not to jostle the nozzle, otherwise your print will shift and this could cause the layers to be more brittle when they come apart.

Now, although the direct extruder is great for working with flexible filaments, you definitely want to be aware that it can be difficult to maintain. The way it’s assembled, the wires do get pinched very tightly onto the side of the housing which does keep them out of the way, however it can make reassembly interesting to deal with. Nozzle replacement shouldn’t be too affected, however, just keep in mind that you’ll want to raise up the print head before you do so. Creality has a very good tutorial on their YouTube channel which walks you through the steps, and I recommend that you look at that video for more details. Most blockages can be removed with the aid of the provided tweezers, so keep those nearby should you need them. For more severe blockages, you will most likely need to use the included needle to help push the blockage up and out, but in most cases it can be removed by doing a cold pull. From a complete cool down state, start heating the nozzle up to temperature while pulling on the filament. This causes any deposits to be lifted with the filament, since they become just hot enough to stick to the filament being pulled out. This may have to be repeated 2 or 3 times, but does a more thorough cleaning of the nozzle. One thing to keep in mind is that the extruder does have a Bowden tube placed inside the heat sink so on occasion this may need to be replaced, however this should be a rare occasion.

The nozzle does ship with a 0.4 nozzle along with its replacement, however I would suggest that you replace these with a 0.6 or 0.8 since this will reduce your print times significantly for larger prints. If you require more detailed pieces and are willing to wait significantly longer, then it may still be worthwhile. When it comes time to removing the filament, You’ll want to push this portion forwards until the filament comes out. Make sure the nozzle is heated before you do this, otherwise this will be far more difficult to achieve and could result in the filament snapping within.

The filament run out detector currently only accepts 1.75 filament, which isn’t unsurprising, since the filament trajectory could be problematic when the print head comes too close to its maximum height. I’ve had some issues with the filament snapping, since it doesn’t have a Bowden's tube to help guide its trajectory. Fortunately this was mostly an issue with the cheaper filaments which were more brittle, however part of this could have been caused by the extremely tight filament sensor. This filament sensor produces a lot of friction which may be the source of this issue and I would like to see this address in the future. When the filaments snap, it doesn’t trigger the run out sensor because of its current location. This was far less pronounced when printing with TPU, but was aggravated when using soft PLA. Having the sensor away from the print head is still very much appreciated since it make filament removal easier, however I would like to see the angle of the spool revised along with the run out sensor. Having a gradual entryway to the filament sensor would get rid of the hard edges which seem to be causing the friction and should be a minor fix in the future.

The frame is very well-supported and given it’s size I’ve experienced very little Z-Wobble, which is very much appreciated. For the wiring, some areas have been glued to help ensure that their connection points don’t come loose over time, which is a good call since I’ve definitely experienced this issue with other machines in the past. The only thing to keep in mind is that this will make it more difficult to replace such wires in the future because of how they are currently attached, however if they last much longer than this shouldn’t be an issue. All the cables are clearly labelled, so tracing connections are a lot easier and will make future modifications easier to achieve. Along with the sturdy frame, the machine has silent stepper drivers and a built-in mosfet. Although I personally prefer when the mosfet is separated from the board because it’s easier to replace, I can appreciate the fact that there’s one less item to troubleshoot in the future.

So how did this machine perform? Well, let’s start with the default Test print that comes which the machine. These prints are always a good way to make sure that your machine is functioning correctly and should always be the first thing that’s printed. So in my case I choose the dog and although it’s difficult to see just how well it printed because of the filament colour that came with the machine it did very good. I then tried printing with flexible PLA, which I soon discovered had a tendency to get stuck because it shaved so easily within the gear system. The results however were very comparable to the dog print. With that out of the way, I immediately changed to a 0.8 nozzle to see just how well it could print with a wide variety of materials. Once again, I printed with the flexible PLA as well as some regular PLA and TPU filament. Here were results of the standard Benchie Test. I then followed up this print with a large scale print for my client in TPU which for NDA reason I can’t show on video. I can say that the 4-day print was very comparable in quality to my small Benchie Test print in TPU. I also 3d Printed a bust of one of my sculptures. To test the full build volume, I then printed a vase in vase mode.

This machine is good. Especially if you already know that you want to use it for flexible filaments. While the user interface is perhaps not as modern, it does the job quite fine and with a couple of tweaks, this could be an even greater machine. So would I recommend this machine? It’s a good machine if you already have some basic experience. I probably wouldn’t recommend it as your first printer because of the user interface, and most user’s don’t require such a large build volume starting off. This is a very good upgrade to your current repository and is an affordable next step.

CR10-V3 Unboxing Impressions



Unbox Experience

In today’s article, we’ll be taking a closer look at the unboxing experience of the CR10 V3 by Creality. I purchased the machine with my own money for some contract work.

The packaging was extremely well done, which was a relief given the shipping company which was used to deliver my printer. One thing that is important to note is that the support bars are hidden in a compartment in the foam, so you’ll want to make sure to find those pieces, otherwise you won’t benefit from the rigid frame design. If you pick up the foam pieces you’ll notice that one is heavier than the other’s and this is where the compartment is located.

  Once opened, you should have all the materials that you need to assemble this machine, however at the time of this recording the BLT touch was back-order, therefore I will be including this in the follow-up video instead. The user manual is very well-designed with a parts’ breakdown list and diagram in colour, which is always a good sign. The company has also been very good at providing instructional tutorial within their website in order to help with problem-solving.

  Before you begin assembly, always take all the components and place them out so that you can make sure you have all the required parts. This is a simple but important step before you begin working on putting any machine together. Lay the frame on top after you’ve turned the couplings upwards to give yourself some more room. When attaching the main bolts for the frame, I would recommend moving the machine to the side of the table so that you can see underneath without damaging any of the components. I loosely tighten these screws until I have them all placed, at which point I tighten them fully. If you over tighten then you could risk bending or stripping the threads, so they should be tight enough that they won’t come lose but not so tight that you see your tool bending with the force.

  For the pull rod, you’ll first need to join two of the poles together using the provided double ended screw. You’ll want to partially turn in one portion of the component. For the second bar, you’ll want to hold it with your thumb to prevent it from spinning while you attach the second pole. You’ll then attach the live bolt to either ends of the joined pole. Make sure to add the bolt onto the live bolt since this will help lock the bar into place. In my initial assembly I overlooked this portion and had to fix this later on. Make sure to use the wrench to tighten the bolt afterwards. Take one of the screws and place this through the live bolt hole while placing the washer on the other opposing side. Screw this first into the bottom hole. In my case, this hole was covered with plastic caps to help protect them, so you’ll need to remove these before completing the assembly.

  Next, I pre-threaded the L connector for the top of the frame, making sure to keep these as loose as possible. These turn around in the grove to lock themselves into place if put in correctly. Double check to make sure that they’re turned the right way after you’ve put these into place. I then attached the Live bolt into the frame in the same manner as the bottom of the rod.

  Z end stop goes on the side where the two screw holes are and with the switch facing upwards. The company also provide a replacement switch in case it’s needed in the future, so make sure that you store this in a safe location.  I made sure to change the correct input voltage to my area’s requirements, which for me is 115.

  The next part was to attach the filament run out detector. This portion has an arrow so that you know the proper orientation for this part. I mounted it with the arrow facing to the front so that the light is visible when turned on. As the for the filament spool, I mounted it differently from what was shown in the diagram. From personal experience I’ve had some spool which could get caught on edges so choose the smoother side as the contact area. The filament run out sensor seems to have quite a bit of friction and may cause issues during printing. I made sure to mount it as close as possible while still having enough room for a full sized spool of filament. If this is your first printer, and you don’t have a full spool, keep in mind you will need to adjust this later since the provided one is tiny in comparison.

  With the basic assembly completed, I then connected the power cable and build plate connector to the power box. Following the labelling of the cables, I connected the two Z axis connector and the Z stop sensor. Afterwards I proceed to connect the Y axis motor, XE Transfer Interface, YZ Transfer Interface, filament run out sensor, Extruder Motor and the cable guide by following the instructions and labels provided. When I received my shipment the cable guide was attached to the frame however this came off during the unboxing so make sure to check carefully to ensure that it’s installed before finishing. Also, it’s very important to give the cable enough slack in order to move completely to the back to prevent any undo strain. This guide is important in preventing the premature wear of the cables, which is a common issue with printers.

  With the machine put together, It was now time to print the model that was provided with the printer. It’s always a good idea to print the test model before doing anything else, since this can help diagnose issues more quickly. In my case the print came out almost flawless, however because of the choice of filament it was difficult to see the imperfections along the surface. Once this print was completed, I then swapped out the nozzle to check how it printed with a larger nozzle size. I must point out that changing the nozzle is somewhat awkward if you don’t know how to do it properly. This is something which I will discuss in the full review of the machine afterwards. With the nozzle changed out, I then began tweaking my settings until I had something which worked fairly well. I’ll be doing quite a bit more tweaks before I finish this piece off, but for now this is how the print came out.

1.75 to 2.85 – Changing Filament Type I3 Mega



Instructions

In today’s article, we’ll be covering how to modify an FDM printer to take 2.85 mm filament instead of the standard 1.75 and see if it’s worthwhile. If you’re doing this yourself, please keep in mind that I do not take any responsibility for any damages that may occur as a result, so do this modification at your own risk.

To begin, I ordered a new Hot end since I was already looking to upgrade my machine. If you’re doing this modification, all you would need is a replacement Bowden tube, since it will fit into an existing nematic fitting. You’re going to want to pick up a Bowden tube which is 2.85 to 3 mm in width for the inside diameter. Since I was also ordering the components from abroad, I made sure to order 2 along with an extra Bowden tube of the right size. I personally already own a Bowden tube cutter, however you can use the standard filament cutter’s as long as you fix the opening after cutting the tube and make sure that your cut is straight.  

The first step in this project was to look into what component I would need to modify in order to keep the original functionality of the machine. In doing so, I discovered that there would be two main components which would need to be changed. In this, I would need to change the filament guide which is connected to the nematic fitting and modify the housing case for the electronic components of the filament run-out sensor. I will not be going over how to upgrade the hot end in today’s video, but keep an eye out for future videos if you want to see that at a latter date. Important to note, I did discover that this modification works best with a larger nozzle size, therefore you may wish to change your nozzle of 0.8 size since that’s the one I tested and achieved good results.  

When installing the new Bowden tubes, there were a couple of things that I learned throughout the years. First off, you’ll want to make sure that it sticks out as straights as possible otherwise, if you’ve cut the tip of your filament on an angle it will puncture the tube. I tied this tube to the wires which were already secured to the machine and this fixed the problem. When removing the Bowden tube, you will need to press down on the nematic fitting while pulling on the tube without bending it. This releases the mechanism which keeps the tube from being pulled out during normal operations. When using filament which is so thick, there’s a large amount of pressure that’s built up in the tube, which causes the tube to want to deform. You’re better off having a little extra room in order for it to bend around corner’s easily. Too long, however, and you’ll end up wasting more filament when you’re at the end of your printing spool. This filament will be quite difficult to deal with, and you should keep in mind that you will be wasting the amount that you have left in your Bowden tube unless you have a filament welder Connector. This is something that I’ve since ordered and will hopefully be testing in the future.  

When creating this modification, I was only able to replace the guide leading from the gears to the nematic fitting. The area where the filament enters into the gears was too small for FDM printing and therefore a resin print would be required, however most resins remain too brittle. Should I get enough requests to continue this in the future, and I’ll create a follow-up video showing this being addressed with a resin printed part?  I will need to do quite a bit of research to ensure that I use a resin which will remain flexible, so this will take quite a bit of time to achieve.  

The Bowden extruder while simple in design does have a spring mechanism that like to shoot out, so be very careful when removing this component. I would highly recommend using some form of tape to help hold it in place while you work, or remove it entirely to keep losing the spring. With this portion opened up, I was then able to take the two components which I wanted to modify out and replace these with my own. You’ll want to keep these parts in a safe place should you need to switch back in the future. I personally put these into a small transparent bag with all the original components, just in case I required them in the future.  

When remodelling the filament guide leading from the nematic fitting to the gears, I originally attempted to use a Bowden tube for this purpose, however it created enough problems that I ended up extending the part instead. Should any of you decide to use this file, you’re going to want to make sure that you sand down and clean up the printed replacement as much as possible to help reduce any friction that may occur. When re-installing the nematic fitting, it’s important to make sure that the Bowden tube it’s cut flat and that you take your filament cutter to slightly widen its entry point. This will help ensure that it doesn’t get pushed back into the machine and that the filament doesn’t get caught on its edges.  When cutting Bowden tubes, this is a simply trick that will help remove any pleats if you’re using your filament cutter’s. 

 With this portion complete, I was then able to begin working on the filament sensor modifications.  In order to do this, I had to remove the original sensor from is plastic housing to see which portions would need to be modified. In this case, I wanted to keep the pre-existing parts so that I would be able to transition back if needed. What this meant is that I need to recreate the housing to fit its original functionality while accounting from some size changes. With the portion for the circuit board completed, I then changed the filament section to accommodate the new filament size.  I also included the original hole so that it could still be attached to the frame of the machine with a longer screw. This is the final model that I ended up using in the end. 

It was finally time to level the bed, which in my case was pretty close and only required some minor tweaks to get it working. Then came the part of changing my print settings until I had something which was closer to what I had originally had. Now keep in mind that this is a large nozzle size, and therefore it isn’t really designed to get details, it’s best suited for larger prints that you don’t want taking a long time. So in my case, I use this machine to create tools and rigs for my internal manufacturing process. If you plan to sand and finish a piece anyway then this will also still work, but you may want to print a lower height and seal the parts of some form of epoxy based putty too so that it doesn’t take as long to finish.  So in the end, was this mod worth doing? Well, for most of you, it probably isn’t. Unless you happen to get a lot of filaments that’s in the wrong size, then you might want to look into doing this, however there are quite a few issues which could arise. First of, this filament is far more brittle since it has a much larger diameter, so trying to get it to print without interruptions can be a challenge. Secondly, you’ll want to see if you can even print at higher temperatures that will be needed. In my case, I had to increase it by over 15 Degrees Celsius to get completed prints. Anything less and the filament was too prone to clogging within the nozzle, and the extra pressure also caused the filament to break more often. Another important thing to note, is that you’ll have to work with your flow compensation to get it perfect, otherwise you’ll have issues with how it comes out of the nozzle. Removing clogs was often tedious at best since the method I found was to remove the Bowden tube entirely and then do a “cold pull” to remove any residue. I believe that this mod is best suited for filaments which are less brittle but flexible, since these will be less likely to break or bend within the Bowden tube. So if any of you attempt this at home, I’d be interested in hearing what you have to say amount this mod in the future.

Resin Cleaning Alternatives – For 3D Printed Miniatures



Article

In today’s article, we’re going to take a look at alternative cleaning solutions for your resin prints.  During the writing of this article, there’s currently a limited amount of products on the market for cleaning resin prints. As someone who develops and produces their own products, this has been problematic, so I’d thought I’d share what I discovered in my testing. 

To begin, let me make it clear that no company has paid me to review their products, and that all the products that you see in this video were purchased by me for this purpose. There’s a fairly large list of products which I’ve tested, however I will be showing you the ones which were spanning the largest range of products and if some of them didn’t work at all they were not included but mentioned latter. For these tests I will be using a slightly less toxic resin which is advertised as being safe, however I still recommend taking the normal precautions when handling this material.  

Let’s also establish some basic testing guidelines for the products which were used. First and foremost, I didn’t use any heat while testing the products. This is important since heat can often change the properties and in certain cases begin releasing fumes.  Also, other than water in most cases, no other products were mixed together.  Other than agitating the product within the confines of a jar, no mechanical scrubbing was used.  Wherever possible, items which weren’t toxic, corrosive or flammable were tested, however for certain products this couldn’t be avoided.  If obvious signs of melting were noticed a more diluted version was also tested, however if the results weren’t promising these were deemed as failures and in certain cases weren’t included in the final notes.  

To start things off, I printed a series of test calibration models, mainly the AmerLabs Calibration Test as well as Twisted Rook. And the products that were tested were quite varied indeed. I tested Alcohol Free Mouth Wash, oil soap, odourless solvent, Mr Clean M.Net, Backing Soda, Vinegar, Simple Green, but the most interesting results came from a select few products.  Isopropyl Alcohol is our control sample from which we’ll be comparing all the results to.  Isopropyl Alcohol has many benefits, included it’s re-usability if used currectly.  Although it removes the resin, if it’s allowed to sit the resin will separate from the Alcohol, allowing you to poor it into another container.  Doings this greatly increases its longevity.  

Simple Green is an all-purpose cleaner which boasts being a non-toxic biodegradable alternative. This product is similar to a liquid soap in certain aspects.  According to the instructions it’s intended to be diluted with a 1 to 1 ratio for heavy-duty applications and this is how it will be tested. 

Vim was tested at full strength as well as it’s diluted counterparts and as you will see the results were very similar. 

Natural Safe Strip is an interior paint and varnish remover which is labelled as natural, ready to use and non-corrosive.  In the instructions it mentions not to dilute with water, therefore two tests were completed with this product.  The first test was a 50% mix of the remover with 50% water, while the second test was in its purest state.

CLR is a multipurpose cleaner which is known for cleaning calcium, lime, rust and boasts that it doesn’t damage the septic pipes.  This product also comes with its fair share of warnings, which include specifics about its hazardous nature when mixed with other chemicals.  This mainly means that this could potentially react with anything other than water, and is something to keep in mind when testing.

Murphy Oil is a wood cleaner, which is an oil soap that’s commonly found in most local cleaning supplies stores.  Most of the products used to make this cleaner are biodegradable and are fairly safe when used as directed. 

Terpenoid Natural is somewhat similar to isopropyl alcohol in that it doesn’t mix with the original resin and can be poured out once settled.  It is, however, more of an oil soap cleaner, so testing it for residues will be a very important step. This product it also claims to be non-toxic and doesn’t have corrosive properties, which makes it more interesting as a possible alternative. 

Mr Clean M. Net is a concentrated product which is normally diluted prior to being used.  This product normally recommends being left on the surface for approximately 10 minutes prior to wiping and cleaning the surface, and therefore 2 tests will be performed.  The first test will be in it’s diluted state, while the second will be the full concentration. 

Goof Off Pro Strength Remover is a cleaner which is well known for removing glue, tar, dried paint and adhesives.  This cleaner requires a well ventilated area since it has strong odours and comes with both a poisonous and flammable warning on its label.  This is a cleaner which when used normally doesn’t tend to leave any residue since it evaporates quickly. 

Generic Odourless Solvent was one which I found through my local art store and is normally used for oil painting purposes. This does help clean off oil or thin oil paints and this particular no name brand is marked as odourless, HOWEVER….. This product does still release toxic fumes and should always be used in a well ventilated area. It should always be caped while not in use. 

Degreasers are normally used to prep surfaces for future finishes and are normally used for cars.  In this case, it’s a shampoo which is formulated to wash and strip away waxes or sealants.  Normally this product would be heavily diluted for this purpose, and it is for this reason that I will be testing it in it’s diluted state. 

The following products produced such terrible results that there weren’t included in the final video.  These products include water, vinegar, Alcohol Free Mouth, backing soda, degreaser, generic odourless solvent and lighter fluid.  During testing, certain cleaners such as Yellow Magic Cleaner 7, Isopropyl Alcohol, acetone, denatured alcohol or methylated spirits weren’t tested because of local shortages.  It is important to note that these products have yet to be tested for painting or casting after treatment, and those will be a separate upcoming coming videos. If you’re interested in those results, please keep an eye out for those in the future. 

So what were the final results?  Isopropyl Alcohol did very well cleaning the final prints without leaving any unwanted residues and finished with an expected 10 out of 10 result.  Simple Green wasn’t very effective in it’s cleaning properties, leaving a substantial amount of residue on the finished print.  It was for this reason that it scored a simple 2 out of 10 in its results.  Vim scored very similar to the Simple Green, with the same amount of residue left on the surface.  As a result, it got the same score, with 2 out of 10 being its final mark. Natures Safe strip scored extremely well in its final marks with a result of 10 out of 10.  This product left very little residue if used with a 1:1 ratio when mixed with water.  When used at 100% concentration, the results were actually poorer than when diluted, and may be because of the difficulty in being able to apply this product along its surface.  CLR didn’t fare so well, with a score of only 2/10 because of the amount of residue left on the surface of the print.  Murphy oil hand the worst results, scoring 1/10 with it’s wet and sticky residue.  Terpenoid Natures had decent results with a small amount of residue along the surface and ranked a 7.5 out of 10 in its final score.  This product is probably best suited for applications where a second cleaning cycle is present or where the item can remain submerged in water after the initial cleaning cycle.  Mr.Clean didn’t do well in its performance tests, ranking only a 2 out of 10 in its final score.  Furthermore, I can confirm from personal experience that residue will react with certain silicons in a such a way as to prevent these from fully curing. Goof off did very well in its testing applications and was compatible to isopropyl alcohol.  This product didn’t leave any residue and was quick in it’s cleaning application, even if the smell was quite strong. 

Seeing as there’s been a significant supply chain disruption, some of these may work as a suitable alternative for the time being.

Final Verdict

Testing Mythology

  • No heat was used.
  • Only water was used to dilute products (based on instructions).
  • No scrubbing. Only Agitating the cleaning Jar.
  • If melting was noticed, a diluted version was tested.

Scores (higher is better)

  • Isopropyl Alcohol = 10/10
  • Terpenoid natures (Canada only product) = 7.5/10
  • MR.Clean = 2/10
  • CLR = 2/10
  • VIM = 2/10
  • Murphy Oil = 1/10
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